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System and method for regulating cardiac triggered therapy to the brain

Inactive Publication Date: 2007-10-11
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nervous system disorders affect millions of people, causing death and a degradation of life.
Because the seizures are unpredictable, epilepsy affects a person's employability, psychosocial life, and ability to operate vehicles or power equipment.
Therefore, the accuracy and timeliness of the detection algorithm and system affects the efficacy of the therapy.
These often are not totally successful or device (CPAP or appliance) compliance is low.

Method used

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  • System and method for regulating cardiac triggered therapy to the brain
  • System and method for regulating cardiac triggered therapy to the brain
  • System and method for regulating cardiac triggered therapy to the brain

Examples

Experimental program
Comparison scheme
Effect test

second embodiment

[0099]FIG. 2 is a simplified schematic view of a second embodiment core Monitor 120 implanted in a patient 10. Monitor 120 continuously senses and monitors cardiac and respiration function of patient 10 via cardiac lead(s) 16 to allow detection of neurological events and the recording of data and signals pre and post event. Stored diagnostic data is uplinked and evaluated by the patient's physician utilizing programmer 12 via a 2-way telemetry link 32. An external patient activator 22 may optionally allow the patient 10, or other care provider (not shown), to manually activate the recording of diagnostic data. Monitor 120 senses both cardiac signals and respiration parameters via standard cardiac leads implanted in the heart. Monitor 120 measures intra-cardiac impedance, varying both with the intrathoracic pressure fluctuations during respiration and with cardiac contraction is representative of the pulmonary activity and of the cardiac activity as substantially described in U.S. Pa...

third embodiment

[0100]FIG. 3 is a simplified schematic view of a third embodiment core Monitor 140 implanted in a patient 10. Monitor 140 continuously senses and monitors cardiac and respiration function of patient 10 via an electrode (not shown) located distally on sensor stub 20 which is inserted subcutaneously in the thoracic area of the patient to allow detection of neurological events and the recording of data and signals pre and post event. Stored diagnostic data is uplinked and evaluated by the patient's physician utilizing programmer 12 via a 2-way telemetry link 32. An external patient activator 22 may optionally allow the patient 10, or other care provider (not shown), to manually activate the recording of diagnostic data. Monitor 140 senses cardiac signals between an electrode on the distal end of the sensor stub and the monitor case as described in conjunction with the embodiment shown in FIG. 5 in U.S. Pat. No. 5,987,352 “Minimally Invasive Implantable Device for Monitoring Physiologic...

fourth embodiment

[0101]FIG. 4 is a simplified schematic view of a fourth embodiment core Monitor 160 attached to a patient 10. External patch Monitor 160 continuously senses and monitors cardiac and respiration function of patient 10 to allow detection of neurological events and the recording of data and signals pre and post event. Stored diagnostic data is uplinked and evaluated by the patient's physician utilizing programmer 12 via a 2-way telemetry link 32. An external patient activator 22 may optionally allow the patient 10, or other care provider (not shown), to manually activate the recording of diagnostic data. Also optionally, a button 38 on the external patch monitor 160 may be activated by the patient 10 to manually activate diagnostic data recording.

[0102] External patch Monitor 160 consists of a resilient substrate affixed to the patient's skin with the use of an adhesive which provides support for an amplifier, memory, microprocessor, receiver, transmitter and other electronic component...

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PUM

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Abstract

An implantable neurostimulator device for implantation in a head of a patient includes a housing adapted to be implanted beneath a patient's scalp, a cardiac monitoring element, a therapy module, and a processor. The processor is configured to activate the therapy module to deliver a therapeutic output to treat a neurological event upon detection of a cardiac event in a cardiac signal. In some embodiments, the device may comprise a brain monitoring element. In some embodiments, the processor may be configured to receive and monitor a brain signal from the brain monitoring element and change the therapeutic output based upon the brain signal.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part application based on U.S. patent application Ser. No. 11 / 311,200, filed Dec. 19, 2005, which claims priority to U.S. Provisional Patent Application Ser. No. 60 / 636,929, filed Dec. 17, 2004, the contents of which are incorporated by reference herein.FIELD OF THE INVENTION [0002] This invention relates generally to medical devices, and more particularly to the improved monitoring of cardiac and respiratory physiologic signals to detect and diagnose neurological events and to provide therapy to prevent or terminate neurological events. BACKGROUND OF THE INVENTION [0003] Nervous system disorders affect millions of people, causing death and a degradation of life. Nervous system disorders include disorders of the central nervous system, peripheral nervous system, and mental health and psychiatric disorders. Such disorders include, for example without limitation, epilepsy, Parkinson's disease, essenti...

Claims

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Application Information

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IPC IPC(8): A61N1/05A61N1/08
CPCA61B5/0031A61N1/3706A61B5/0205A61B5/0245A61B5/0402A61B5/0476A61B5/0816A61B5/1135A61N1/36003A61N1/3601A61N1/36014A61N1/36082A61N1/36114A61N1/3621A61N1/36521A61N1/36585A61N1/37288A61N1/3925A61N1/3962A61N1/375A61N1/36053A61N1/3702A61B5/02A61B5/4094A61N1/37514A61B5/318A61B5/369A61B5/37A61B5/33A61B5/384
Inventor GIFTAKIS, JONATHON E.GRAVES, NINA M.THOMPSON, DAVID L.
Owner MEDTRONIC INC
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